塔里木盆地塔河油田S48井区三维高精度地震采集效果

塔河油田奥陶系碳酸盐岩经风化剥蚀而形成众多低幅度的风蚀残丘、裂缝及溶蚀孔洞,储层的非均层性极强。通过在S48井区开展三维高精度地震采集,提高了地震资料的频率,拓宽了频带,提高了信噪比和分辨率。利用三维高精度地震采集数据,增强了对孔洞体地层楔状尖灭体、断层和河道的识别能力,对风化面残丘和水系刻画更精细,提升了目标区目的采收率。     

卡托普利生物黏附型缓释胶囊大鼠体内药动学研究

研究卡托普利生物黏附型缓释胶囊(Captopril/bioadhesive sustained-release capsules,CBSRCs)在大鼠体内的药动学,通过建立高效液相色谱(HPLC)-紫外检测法测定卡托普利(Captopril,Cap)的血药浓度,研究了大鼠灌胃CBSRCs和卡托普利普通片(Captopril ordinary tablet,COT)各5 mg/kg后16 h内的药动学,DAS 2.0软件计算出相应的药动学参数,t检验比较两种制剂的药动学参数。结果表明,Cap浓度在12.5～800μg/L范围内线性关系良好(r=0.998 7),最低检测限为12.5μg/L,平均回收率为99.40%,平均日内RSD为3.97%,平均日间RSD为4.84%;单剂量口服CBSRCs和COT,Tmax分别为(3.12±0.67),(1.53±0.27)h;Cmax为(722.97±133.68),(1 114.47±208.36)μg/L;T1/2α为(1.88±0.38),(1.15±0.21)h;T1/2β为(3.76±0.75),(2.87±0.59)h;CL为(2.87±0.51),(3.43±0.67)L/h,Vd为(10.98±1.90),(13.21±2.57)L;AUC0-t为(4 856.03±835.46),(4 616.29±915.49)μg.h/L;AUC0-∞为(5 218.39±1 037.58),(4 705.83±894.56)μg.h/L。CBSRCs和COT相比,T1/2α,T1/2β,AUC0-t,AUC0-∞,CL,Vd,Tmax,Cmax差异显著(P0.05或0.01)。说明CBSRCs与市售COT在大鼠体内的药动学特征差异具有显著性,说明高效液相色谱-紫外检测器测定Cap含量的方法稳定,结果准确可靠。CBSRCs与市售COT相比,CBSRCs显著改善了卡托普利原药的药动学性质,具有缓释和长效的作用。     

Meso-scale spatial distribution of large tintinnids in early summer in southern Yellow Sea

The spatial distribution of some large tintinnid species （nominally〉76 μm） was investigated according to samples collected by vertical towing in cruises to the southern Yellow Sea in summer 2000-2002 and 2004. Eight species were identified： Codonellopsis mobilis, Leprotintinnus netritus, Tintinnopsis karajacensis, T. japonica, T. kiaochowensis, T. butschlii, T. radix, and Parafavella sp. With maximum abundance of 158.2 ind/L in June 2004, C. mobilis was the dominant species, lasting from May to July 2004. Tintinnid communities were patchy and distributed mainly in shallow waters along the shore.     

关于完善耕地保护责任制考核的研究和思考

一、我省耕地保护责任制的探索与完善 为合理利用土地,切实保护耕地,我省自1995年9月开始实行了耕地保护目标管理责任制,依据当时统计部门提供的全省2480万亩耕地,分解落实到11个市,并与各市政府签订了耕地保护责任书。1998年我省又与11个设区市及所辖的县（市、区）、乡（镇）分别重新签订了耕地保护目标管理责任制,按规划目标及时落实了耕地保护任务,从而形成了省、市、县、乡四级保护耕地的目标管理责任制,将土地利用总体规划确定的耕地保有量、建设占用耕地量、基本农田保护面积和保护率等指标列入了各级政府耕地保护的责任。2006年,我省根据国务院办公厅《省级政府耕地保护责任目标考核办法》（国办发[2005]52号）、中组部《综合考核评价试行办法》的规定和要求,制定出台了《浙江省市级政府耕地保护责任目标考核办法》（浙政办发[2006]32号）,进一步加强了政府耕地保护责任制的实施管理,从而形成了相对完善的考核体系。     

构建矿产资源有序有效开发利用新机制要实现三个转变

当前,我厅深入学习实践科学发展观活动正有力有效推进,有声有色开展。这次学习实践活动有两大特色：一是突出实践特色,二是构建机制特色。对于矿政管理部门来讲,如何构建矿产资源有序有效开发利用新机制,如何提升我省矿产资源管理水平,这对于积极应对目前金融危机对矿业行业的影响,     

做好新形势下的耕地保护工作

就国土资源系统来说,此次开展深入学习实践科学发展观活动,是破解保障发展与保护资源“两难”问题的根本途径。国土资源在保障发展中具有基础性作用,是经济社会发展最基本的生产要素,是经济社会发展的本源。国土资源要做到既保障发展、又保护资源,就必须牢固树立科学发展观,并以科学发展观为统领,改革创新国土资源管理的体制机制。     

慢速扩张脊下的复杂熔-岩相互作用：来自大西洋北纬14°97′区段洋中脊含铬铁矿纯橄岩的记录

在大西洋洋中脊北纬14°97′附近贫岩浆型慢速扩张脊区段的洋底岩石调查中,拖网取样及洋底钻探均发现蛇纹石化地幔岩石中有脉状纯橄岩。纯橄岩中的铬铁矿粒度以毫米级为主,个别颗粒直径接近厘米级别,成分上显示中等程度的铬值与镁值(Cr^#=52.2～56.1;Mg^#=44.6～51.5)较高的TiO₂含量(0.60%～0.91%)。铬铁矿内部包裹体中大量出现韭闪石+金云母组合,并发现自形磷灰石包裹体。这些特征与“俯冲带型铬铁矿”的成分特征及矿物包裹体组合非常类似。本文的样品观察说明在洋中脊下方的熔体通道内,高度演化的熔体可以形成小体积的富水岩浆并参与铬铁矿的形成。拖网调查与钻探研究证实,研究区的纯橄岩、异剥橄榄岩、富橄榄石橄长岩、辉石岩、辉长岩及橄榄辉长岩等均以脉体形式产于难熔的大洋岩石圈橄榄岩质地幔中。这些脉状岩石共同记录了洋中脊玄武质熔体向上迁移过程中与围岩方辉橄榄岩间的熔-岩反应,属于“交代橄榄岩”的范畴,揭示了慢速扩张洋脊之下熔体迁移诱发的复杂熔-岩相互作用。     

基于贝纳尔对流的区域经济地域结构系统研究——以河南部分市县为例

区域经济系统是一个开放的复杂巨系统,它具有贝纳尔对流的特点.如把剩余劳动力作为因区域经济差异而产生的流体,利用贝纳尔对流理论,可分析其在外界差异下的流动状态,并解释经济活动的地域自组织现象及运行机制.以河南部分市县为例,分析了剩余劳动力流动的不同发展阶段和特点.分析表明,中原地区形成了一个以郑州为吸引中心,新乡、开封等为扩散中心,周口等为辐射地区,安阳等为外围的区域经济地域结构;聚类分析进一步表明,各县域经济在外界差异的基础上分别形成不同的区域经济发展系统.     

基于深度卷积嵌入式聚类（DCEC）的海洋环境特征提取对渔情预报模型的改进研究

In order to improve the forecasting ability of the fishery forecast model for the longline bigeye tuna (Thunnus obesus), we proposed a marine environment feature extraction method based on deep convolutional embedded clustering (DCEC), combined with generalized additive model (GAM) for forecasting the longline bigeye tuna fishing grounds in the Southwest Indian Ocean. We used the MODIS-Aqua and MODIS-Terra sea surface temperature (SST) three-level inversion image data (in days) from January to December in 2018 at 0.041 6°×0.041 6° to construct a DCEC model, determined the optimal number of clusters based on the Davies-Bouldi index (DBI), and extracted the category feature value (F_M) of each month’s sea surface temperature (SST); we used monthly 1°×1° bigeye tuna longline fishery data from January to December in 2018 generated from the Indian Ocean Tuna Commission (IOTC), and calculated the catch per unit effort (CPUE); we matched the monthly category feature value F_M and the monthly average value of Chl a concentration with the CPUE data to construct an improved GAM; we matched the monthly average SST, the monthly average Chl a concentration and CPUE data to build a basic GAM; we used the joint hypothesis test (F test) to verify the influence of model explanatory variables; we used akaike information criterion (AIC), mean square error (MSE), and draw the frequency distribution diagrams and box diagrams of measured and predicted values, etc., to analysis the improvement effect of the improved GAM compared to the basic GAM. The results showed that: (1) the category feature value (F_M) extracted based on the DCEC model could better reflect the temporal and spatial dynamic characteristics of SST in the Southwest Indian Ocean, and was related with the climatic conditions, monsoon conditions, and hydrological characteristics in the Southwest Indian Ocean; (2) the factor interpretation of F_M was higher than that of the monthly average SST in GAM, which means F_M had more significant impact on the CPUE of bigeye tuna. The high catch rate was concentrated in the areas where the F_M category was 2, 10, 24 with intersections between the warm and cold currents; (3) the AIC of the improved GAM was reduced by 9.17% than that of the basic GAM and MSE of the improved GAM was reduced by 26.7% than that of the basic GAM; the frequency distribution of the CPUE logarithmic value predicted by the improved GAM was closer to the normal distribution, and the high frequency distribution interval was closer to that of the measured value; the scatter plot showed that the CPUE predicted by the improved GAM had a significant correlation with the measured CPUE, with r equaled to 0.60. This study proves the effectiveness of the DCEC model in extracting marine environmental features, and can provide a reference for the further study on the bigeye tuna fishery forecast.     

甲壳动物渗透压调节的研究进展Ⅰ．鳃的结构与功能及其影响因子

甲壳动物渗透压调节是其生命过程中非常重要的生理活动。调节过程主要由鳃上皮来完成。综述了鳃上皮的结构与功能以及它在调节渗透压时的生化特点、生理机制和它在盐度变化时 的形态结构变化、生理生化过程。